The Holk: … the first VCSEL-tranciever prototypes are to come at Q2. The finished market-ready Prototype of a complete VCSEL-Tranciever is announced at Q4 2016.

Exactly, The Holk. And that's what Subhash confirmed to me yesterday. They will have a functioning prototype by Q2, but that won't be a finished, polished and shining (pun intended) product by then. It will require at lot of optimization and fine tuning until they'll have something they'll call a product or product prototype.

By the way, I am very impressed by Subhash and his stance regarding quality and excellence. He won't be confident with something that barely works, but he will do his utmost to really deliver excellence. And that is true even if it is an integrated VCSEL transceiver, which would be the first such product on the market anyway.